Boulder, Colorado Dirt Bike Bill of Sale

What to include

• Buyer and seller names and addresses
• Dirt Bike VIN and vehicle details
• Sale price and date
• Signatures from both parties

Next step

Create a compliant bill of sale and download the signed PDF immediately.

Dirt Bike title transfer deadline in Colorado

Colorado gives the buyer 60 days from the sale date on the bill of sale to complete the dirt bike title transfer at the Boulder County Motor Vehicle Office – Boulder in Boulder. Miss the 60-day window and Colorado charges a late-transfer penalty of typically $25-50 plus accrued use tax, and the seller can still appear on the title for civil liability if the buyer crashes the vehicle before retitling. Keep your signed bill of sale and the assigned title together and file as soon as you can, even if registration plates will be transferred later.

VIN inspection. CO requires a VIN inspection (DR 2698) for vehicles titled out-of-state. Inspection can be done at a county motor vehicle office or by law enforcement.

File at the Boulder County Motor Vehicle Office – Boulder (2025 14th St, Boulder, CO 80302). Bring the signed title, the completed Boulder bill of sale, your ID, and payment for the $7.20 title transfer fee plus 8.85% sales tax on the purchase price.

Dirt Bike mechanical pre-purchase checklist for Boulder buyers

Before you sign the Boulder bill of sale, walk through this inspection on thedirt bike. A pre-purchase inspection costs $100-200 and routinely uncovers $1,000+ in deferred maintenance — that is the figure you negotiate off the price or walk away from entirely. Use this list as your shortlist when you meet the seller or when a local mechanic looks the vehicle over.

Common mechanical issues to inspect

• Verify engine hours via meter or pull top end to inspect piston/rings
• Check linkage bearings and swingarm bearings for grit and seizure
• Inspect frame welds at swingarm pivot, motor mounts, and steering head
• Test radiator condition — bent fins/leaking are common on race bikes
• Check fork oil for milky contamination indicating seal failure
• Inspect clutch basket for notching from aggressive shifting

Safety checkpoints

• Inspect frame and subframe for cracks from jumps and crashes
• Check fork seal condition and suspension linkage bearings
• Verify engine compression and listen for bottom-end noise
• Check sprocket and chain wear — high-wear items on dirt bikes
• Confirm spark arrestor is present and unmodified (USFS land requirement)
• Test kill switch function and bar-mounted controls

Title documentation notes. Dirt bikes are typically classified as off-highway motorcycles (OHV) and titled accordingly in states that issue OHV titles (California, Idaho, Texas, etc.), while other states transfer with bill-of-sale only and require only a green/red OHV decal. Street-legal conversion (dual-sport) requires a separate state inspection plus DOT-approved lighting, mirrors, and tires before retitling as a road-legal motorcycle. Federal odometer disclosure does not apply to off-road-only dirt bikes.